Siemens HiPath 4000 - Manual (Page 57)

Web-based Management Tool Administration
57
SRSR Settings
Time Settings
VOIP Encryption Settings
Only for optiPoint 410/420 economy plus/standard/advance with software
version 5.x and higher on HiPath 3000/5000 (version 6.0 and higher) or Hi-
Path 4000 (version 3.0 and higher).
Click on the required field to see a description for each parameter.